Title :
A modified MEI method for solving scattering problems with the finite element method
Author :
Li, Y. ; Cendes, Z.J. ; Yuan, X.
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
June 28 1993-July 2 1993
Abstract :
The MEI (measured equation of invariance) procedure is modified to work with the finite element method. The modified MEI method was tested on several scatterer geometries for both TE (transverse electric) an TM (transverse magnetic) waves. For problems involving simple materials, the modified MEI method gives excellent results even if the artificial boundary is very close to the scatterer. In these cases, the modal expansion ABC (absorbing boundary condition) gives reasonable results, but not as good as the modified MEI method. The modified MEI method approaches the real solution as the mesh is refined.<>
Keywords :
boundary-value problems; electromagnetic wave scattering; finite element analysis; invariance; TE waves; TM waves; absorbing boundary condition; finite element method; measured equation of invariance; mesh; scatterer geometries; Boundary conditions; Current density; Electromagnetic scattering; Finite difference methods; Finite element methods; Geometry; H infinity control; Integral equations; Symmetric matrices; Tellurium;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385349
